نتایج جستجو برای: electron relaxation time
تعداد نتایج: 2206802 فیلتر نتایج به سال:
ABSTRACT The aim of this study was comparison of priming and intubating dose of Atracurium on the onset of muscle relaxation time to testing an alternative method for urgent operation. one hundred, 20-30 years old men that were condidate for urgency surgery entered in this study and divided in two groups randomly. First group was relaxed with Priming dose of Atracurium. In this way, %5 mg (pr...
Time-dependent mechanical characterization of nanowires is critical to understand their long-term reliability in applications, such as flexible-electronics and touch screens. It is also of great importance to develop a theoretical framework for experimentation and analysis on the mechanics of nanowires under time-dependent loading conditions, such as stress-relaxation and fatigue. Here, we comb...
The electron-phonon interaction is the dominant process that controls the energy relaxation of carriers, in semiconductors and related heterostructures. If the excess energy of the electron ensemble is sufficiently high, the process of electron cooling may generate significant nonequilibrium electron and optical-phonon populations which may cause substantial changes in the carrier relaxation ki...
We have performed a real-time in situ x-ray scattering study of the nucleation of GaN nanowires grown by plasma-assisted molecular beam epitaxy on AlN(0001)/Si(111). The intensity variation of the GaN diffraction peak as a function of time was found to exhibit three different regimes: (i) the deposition of a wetting layer, which is followed by (ii) a supralinear regime assigned to nucleation of...
The thermoelectric properties of quasi-one-dimensional (Q1D) organic crystals with p-type conduction band are studied. Two main electron-phonon interaction mechanisms and carriers scattering on impurities are taken into account. The relaxation time as a function of carrier energy is analyzed for different values of crystal parameters. It is shown that under certain conditions, when the interfer...
Creating non-equilibrium states of matter with highly unequal electron and lattice temperatures (T(ele)≠T(ion)) allows unsurpassed insight into the dynamic coupling between electrons and ions through time-resolved energy relaxation measurements. Recent studies on low-temperature laser-heated graphite suggest a complex energy exchange when compared to other materials. To avoid problems related t...
Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot
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